APIWatch - API Changelog Tracker

Model: x-ai/grok-4.1-fast
Status: Completed
Cost: $0.094
Tokens: 263,607
Started: 2026-01-05 14:33

05: User Research & Validation Plan

Key Assumptions to Validate

Precision validation targets 18 high-risk assumptions across problem fit, solution desirability, and business viability. Prioritize top 10 for initial sprint.

Category Assumption Risk Method Target Evidence
Problem
Teams track 10+ third-party APIs per appHighInterviews/surveys70%+ confirm ≥10 APIs
Miss ≥1 breaking change quarterlyHighInterviews60%+ report prod incidents
Changelogs scattered/missed 50%+ timeHighSurveysQuotes + 50% frequency
Manual checks take 4+ hrs/weekMedInterviewsAvg 5 hrs documented
Security/auth changes most fearedHighSurvey rankingTop 2/5 priorities
Provider emails ignored 70%+ timeMedInterviews80%+ "lost in inbox"
Solution
Auto-detection from package.json viableHighPrototype test80%+ APIs detected accurately
LLM change classification ≥85% accurateCriticalExpert review85%+ true positives
Slack alerts preferred channelMedSurvey60%+ top choice
Impact analysis saves 50% debug timeHighWizard of OzUsers confirm time savings
Dashboard reduces check frequency 80%MedUsability testNPS >40 on unified view
GitHub integration essential for teamsHighInterviews70%+ "must-have"
Business
$49/mo acceptable for 50 APIsCriticalVan Westendorp60%+ acceptable range
Free tier → paid conversion 20%HighLanding page>10% trial signups
CAC <$50 via dev communitiesHighAd testsProven <$50/lead
Churn <10% post-validationMedPre-orders>90% retention intent
DevOps decides purchase (not CTO)MedInterviews70%+ buyer persona match

Customer Discovery Interview Guide (60-90 min)

Target: 25 interviews (15 primary: eng teams, 5 secondary: DevOps, 5 tertiary: founders). Recruit via LinkedIn ("API dependency pains? 30min chat + $50"), Reddit r/devops, Hacker News. Use Otter.ai for transcripts.

Part 1: Background (10 min)
  • Tell me about your role and day-to-day API work.
  • How many third-party APIs does your app/team use?
  • Biggest infra challenges right now?
Part 2: Problem (20 min)
  • Walk me through last API change incident (e.g., Stripe webhook).
  • How often do you miss changes? Prod impact?
  • What triggers manual checks (deploys, outages)?
  • Feelings/time lost? Security fears?
  • Current spend on monitoring/tools?
Part 3: Solutions (15 min)
  • What tools for changelogs (RSS, Dependabot)? Likes/dislikes?
  • Switched recently? Why? Switch triggers?
  • Ideal monitoring tool must-haves?
Part 4: Our Solution (15 min)
  • A tool auto-tracks API changes, alerts Slack, links to your code...
  • Most valuable? Concerns (accuracy, scraping)?
  • Price expectation ($49/mo team)? Approvers?
Part 5: Wrap (10 min)
  • 1-10 pain score? Beta interest?
  • Referrals?

Survey Designs

Screening Survey (Target: 300 responses via LinkedIn/Reddit polls)
  1. Role? [Eng lead/DevOps/Founder]
  2. APIs tracked? [<10 / 10-50 / 50+]
  3. Missed change in 6mo? [Yes/No + impact]
  4. Pain 1-10?
  5. Time/week manual checks?
  6. Budget for monitoring?
  7. Interview interest? ($50)
Validation Survey (Target: 150 from screen + ads)
  1. Current tools satisfaction (1-10)
  2. Rank pains: breaking/security/deprecations
  3. A/B headlines interest (1-10)
  4. Van Westendorp: Too cheap/expensive?
  5. Feature priority: alerts/dashboard/impact
  6. Demographics: team size, tech stack

Validation Experiments

Landing Page (Week 3)
  • A/B Headlines: "Catch API Breaks Before Prod", "Unified API Changelog Alerts", "Auto-Track 50+ APIs w/ Slack Alerts"
  • Waitlist + fake door ($49 CTA)
  • $750 FB/LinkedIn ads (dev targeting)
  • Success: 1k visits, 7% signup, <8% bounce
Prototype: Wizard of Oz (Recommended, Week 7)
  • Google Form: Paste package.json → manual LLM scan → email report
  • 10 users, $0 cost, measure NPS/accuracy
  • Alt: Figma clickable dashboard ($300)

Fake Door/Pre-Order: Pricing tiers on LP → "Coming Q1" or Stripe pre-pay (refundable). Success: 12% click, 3% pay.

8-Week Timeline

Wk1-2: Interviews (20)
Surveys (300)
Problem Synthesis
Assumption Pivot
Wk3-4: LP A/B ($750 ads)
Validation Survey
Fake Door Test
Solution Feedback
Wk5-6: Pricing Interviews (15)
Van Westendorp
Pre-Orders (10)
WTP Pivot
Wk7-8: Wizard Oz (15 users), NPS, Go/No-Go

Go/No-Go Criteria

MetricTargetActualPass?
Problem validation (interviews)75%+ confirm pains
LP signup rate>7%
Price acceptance ($49)65%+
Pre-orders10+
WoZ NPS>45

Fail 2+ → Pivot or kill.

Research Synthesis Template

Problem: Top pains/quotes/unexpected/wrongs
Solution: Features cared/ignored/UX/integration
Pricing: Optimal/sensitivity/anchors/model
GTM: Channels/discovery/objections

Next: Share raw transcripts + dashboard in Notion for team review. Budget: $3k total (incentives/ads).